kardolus commented on code in PR #914:
URL: https://github.com/apache/knox/pull/914#discussion_r1640568668


##########
gateway-server/src/main/java/org/apache/knox/gateway/GatewayServlet.java:
##########
@@ -282,33 +281,15 @@ public Enumeration<String> getInitParameterNames() {
     }
   }
 
-  private Exception sanitizeException(Exception e) {
+  private SanitizedException logAndSanitizeException(Exception e) {
+    LOG.failedToExecuteFilter(e);
     if (e == null || e.getMessage() == null) {
-      return e;
+      return new SanitizedException(e.getMessage());
     }
     if (!isErrorMessageSanitizationEnabled || e.getMessage() == null) {
-      return e;
+      return new SanitizedException(e.getMessage());
     }
     String sanitizedMessage = 
e.getMessage().replaceAll(errorMessageSanitizationPattern, "[hidden]");
-
-    return createSanitizedException(e, sanitizedMessage);
-  }
-
-  private <T extends Exception> T createSanitizedException(T e, String 
sanitizedMessage) {
-    try {
-      Constructor<? extends Exception> constructor = 
e.getClass().getConstructor(String.class, Throwable.class);
-      T sanitizedException = (T) constructor.newInstance(sanitizedMessage, 
e.getCause());
-      sanitizedException.setStackTrace(e.getStackTrace());
-      return sanitizedException;
-    } catch (Exception ex) {
-      Exception genericException = new Exception(sanitizedMessage, 
e.getCause());
-      genericException.setStackTrace(e.getStackTrace());
-      return (T) genericException;
-    }
-  }
-
-  private <T extends Exception> T logAndSanitizeException(Exception e) throws 
T {
-    LOG.failedToExecuteFilter(e);
-    throw (T) sanitizeException(e);
+    return new SanitizedException(sanitizedMessage);

Review Comment:
   @pzampino The Single Responsibility Principle would be violated because it 
would make the SanitizedException class responsible for both defining an 
exception and performing sanitization logic, thus giving it more than one 
reason to change.



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